The 42-year-old former supermodel and her Norwegian photographer boyfriend Erik Asla are now the parents of a baby boy, York Banks Asla, who was born via surrogate.

"We are so excited for our new baby boy bundle of joy," Tyra told People in a statement.

"The journey to now has not been an easy process, as I've shared before. But there was a beautiful bright light at the end of the tunnel for me and his father, Erik.

"As I gaze into the beautiful eyes of my son, I think about all the people who struggle with fertility or carrying a child and continue to pray for them every day. My hopes and dreams are filled with well wishes that they get to feel what my little treasure, York Banks Asla, feels like in my arms."

The America's Next Top Model creator and beauty entrepreneur took to Instagram with a photo of a baby hospital hat, describing York as a "our miracle baby boy".

Tyra has previously spoken about her fertility struggles, telling People that she tried IVF procedures after turning 40.

"I've had some not happy moments with that, very traumatic moments," she said. "It's difficult as you get older. It's not something that can just happen."

Tyra started dating partner Erik, 50, more than two years ago after meeting on Norway's version of Top Model. He has since appeared as a regular photographer on America's Next Top Model, which wrapped its final season in December.

In November, Tyra quit her new daytime talk show FABLife after less than three months on air, saying she needed to focus on her cosmetics brand Tyra Beauty.

But now it looks like baby Banks will be the centre of attention for mama Tyra in 2016.